Home / 31,809.20-47,675.40-16,218.80

Finding the Fourth Proportional to 31,809.20, 47,675.40 and 16,218.80

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Solution

The fourth proportional to 31,809.20, 47,675.40 and 16,218.80 is: 24,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.20 : 47,675.40 = 16,218.80 : x
  2. Step 2: Convert to fraction form
    31,809.20/47,675.40 = 16,218.80/x
  3. Step 3: Cross multiply
    31,809.20x = 47,675.40 × 16,218.80
  4. Step 4: Simplify right side
    31,809.20x = 773,237,777.52
  5. Step 5: Solve for x
    x = 773,237,777.52/31,809.20
  6. Step 6: Final answer
    x = 24,308.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.